January weather forecast
Lucena, Brazil

January, like December, in Lucena, Brazil, is another warm summer month, with an average temperature fluctuating between 25°C (77°F) and 29.8°C (85.6°F).

Temperature

The arrival of January denotes a barely perceptible change in the average high-temperatures to a still warm 29.8°C (85.6°F) from December's 29.4°C (84.9°F). In Lucena, January nights experience a modest descent in temperature from daily peaks, cooling down to an average of 25°C (77°F).

Heat index

January's heat index is evaluated at a torrid 36°C (96.8°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in January in Lucena is 74%.

Rainfall

In Lucena, during January, the rain falls for 16.8 days and regularly aggregates up to 37mm (1.46") of precipitation. In Lucena, during the entire year, the rain falls for 235.2 days and collects up to 599mm (23.58") of precipitation.

Daylight

The average length of the day in January is 12h and 28min.
On the first day of January, sunrise is at 05:07 and sunset at 17:38. On the last day of the month, sunrise is at 05:20 and sunset at 17:45 -03.

Sunshine

January and March, with an average of 8.2h of sunshine, are months with the most sunshine in Lucena.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 7 translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.